"\"Rotten Grouchy Mother's Day\" is a Sesame Street song from a 2010 episode. Oscar assembles Gordon, Bob and Chris, who dress like Grouches, to sing the song to his mother in barbershop harmony."@en . "2009"^^ . "\"Rotten Grouchy Mother's Day\" is a Sesame Street song from a 2010 episode. Oscar assembles Gordon, Bob and Chris, who dress like Grouches, to sing the song to his mother in barbershop harmony."@en . . "Radisongs"@en . . "Rotten Grouchy Mother's Day"@en . . . "Sesame Street Inc."@en . .